Automatic bucket-dumping apparatus.



No; 7o|,a|2. Patented June 3, |902.

T. N. JUN-ES. v AUTOMATIG BUCKET DUIPING APPARATUS.

(Application led July 15, 1901.) 'Ulu Model.) 2 sheets-Sheet l.

No. 7o|,s|2. Patented me 3, 1902.l

T. u. Jones.

AUTOMATIC BUCKET DUHPING APPARATUS.

' f (Application tiled July 15, 1901.)l K (Ilo Model.) 2 Shasta-Sheet 2.

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11H: cams PETERS w. Pnomrmm WMINGTDN, n4 c.

UNITED STATES PATENT OFFICE.

THEODORE N. JONES, OF ORISMAN, COLORADO, ASSIGNOR OF ONE-HALF TO PALMERC. LOVELEND, .OF CRISMAN, COLORADO..

AUTOMATIC BUCKET-DUM PING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 701,812, 'dated une 3,1902.

Appunti@ tied .my 15, 1901.

v drawings, and to the characters of reference marked thereon, whichform a part of this specification.

My invention relates to improvements in automatic`bucket-,dumpingapparatus, more especially intended for: dumpingore-buckets after they are drawn from-.the mining-shaft'.

My object is'to"`provide an apparatus of this class whichl shall be'comparatively simple in construction, economical in cost, reliable,durable, and thoroughly. practicable` in operation; .and to these endsthe-invention consists of the features, arrangements,` and combinationshereinafter described and claimed, all of which will be fullyunderstoodV by reference tothe accompanying drawings, in which isillustrated an embodiment thereof.

In the drawings, Figure 1 is a side-eleva'- ton, partlyin section,illustratingmy improved bucket-dumping apparatus. Fig. 2 is a frontelevation ofthe same. Fig. 3 is a perspective View of the hinged bucketholding and dumping device. Fig. 4 "is a' section taken through the topof a mining-shaft, illustrating the bucket-guide located near the top ofthe shaft.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate a framework which may be of any suitableconstruction. Mounted on aV shaft 6, located in the upper part of theframework, is a sheave or pulley 7, over which passes the wire rope orcable 8, one extremity of which is connected with the bucket 9, whilethe other extremity leads to the drum of the hoisting apparatus. (Notshown.) The frame 5 is constructed on one downwardly-curved cross-bars5c, between serial No. 68,451. (No mais.)

the two main side bars 5d, forming a sort of cradle in which thebucketis adapted toslide as'it is drawn up out of and let down into theshaft 10, which is provided with a bucketguide 12,1ocated nearthe top ofthe shaft and arranged to direct the bucket to the cradle or guide track5L of the frame. lTo the extremity of this track 5a is hinged, as shownat 13, a dumping device 14, normally held in a position to' harmonizewith the position and inclination of the track by weights 15, attachedto the opposite sides of said device. The device '14, as shown in' thedrawings, is rectangular in shape and provided with a central bar 14aand a bar 14c on each side of the centralbar. On these barsis slidablymounted a cross-head 16, provided with a hook 17 Between this cross-headand one end of the device 14 are located two coil-springs 18, whichsurround -the bars 14C, respectively. Theser springs, are soarrangedthat as the cross-head is moved upwardlythe springs arestretchedandplacedundertension.` Mounted on the frame infront-of thedumping device 14lis aleaf-spring 19.

As the filled `bucket isdrawn up out of the Ishaftit nrstengages.` theguide 12 at the top of the shaft and Vpasses thence to the inclinedjtra'ck. {r3-and asit is drawn upwardly it finally reaches the dumpingdevice 14. The upper edge of the bucket is then engaged by the hook 17,whichbeing mounted'on the springheld cross-head forms a yielding stopfor the inverted position and dumps into a car 20 or other receptacle,as may be desired, the ore being carried from the bucket to the car by asuitable chute .13. During the bucketdumping operation the bucket isheld in position on the device 14 by the hook 17 of the spring-heldcross-head. Then as the cable pulls the bucket upwardly the dumpingdevice is raised to its normal position by its weights 15. Then as thecable is slackened the contraction of the springs 18 draws the bucketdownwardly below the spring 19, whereby the latter is prevented fromacting on the empty bucket. The latter then passes downwardly on thetrack 5a and thence into the shaft 10. A .roller A, journaled in theframe at the lower extremity ofthe buckettrack, forms an antifrictionalbearing for the cable when the device is in use.

Having thus described my invention, what I claim is- 1. In abucket-dumping apparatus,the combination with a suitablesupporting-frame, and a pulley mounted thereon, of an inclinedguide-track mounted on the frame, a dumping device hinged at the upperextremity of said track and arranged to tip downwardly, a spring mountedon the frame, arranged to engage the bucket when mounted on the dumpingdevice and adapted to cooperate with the gravity of the bucket toperform the dumping function, means for normally holding the dumpingdevice in position to coincide with the position of the track, and abucket-holding attachment mounted on the dumping device.

2. Inabucket-dumpingapparatus,the combination with a suitablesupporting-frame, and a sheave or pulley mounted on the upper portionthereof, of a bucket guide track mounted on the frame in line with thepulley, a hinged dumping device normally forming a continuation of thetrack, means mounted on the dumping device for engaging and stopping thebucket when the latter has reached its liinitof upward travel,saidbucketstop being arranged to support the bucket on the dumping devicewhen the latter is tipped downwardly and the bucket inverted, and meansmounted on the frame, arranged to engage the bucket when mounted on thedumping device and adapted to cooperate .with the gravity of the bucketto perform the dumping function.

3. In a bucket-dumping apparatus, the combination with a suitable frame,a pulley mounted on the upper part of the frame, and arranged to beengaged by the bucket-cable, of an inclined track mounted on the frame,a hinged dumping device normally forming acontinuation of the bucket-guide track, and a spring-held bucket-retaining device mounted on thedumping device, the arrangement being such that as the bucket is drawnup the inclined track, and landed on the dumping device and the cableslackened, the gravity of the bucket tips the dumping device and throwsthe bucket to an inverted position.

4. Ina bucket-dumpingapparatus,the combination with a suitablesupporting-frame 1ocated at the mouth of the shaft, a curvedbucket-guide located in the upper part of the shaft, to cause the bucketto move easily out of the shaft to the bucket-dumping apparatus, aninclined guide-track mounted on the frame in alinement with theshaft-guide, a hinged or pivoted dumping device mounted on the frame inalinement with the bucketguides, means for normally holding the dumpingdevice in a position forming a continuation of the guide-track, and ayieldingly-retained bucket-holding device mounted on the dumping device.

5. In a bucket-du mping apparatus, the combination with a suitablesupporting-frame, of an inclined guide-track mounted thereon, a hingedor pivoted device mounted on the frame in alinement with theguide-track, and a spring-retained hook mounted on'the dumping deviceand adapted to engage the upper edge of the bucket and support thelatter when in the inverted position.

6. Inabucket-dumping apparatus, the combination with a suitablesupporting-frame, of a bucket-guide track mounted on the frame, a hingedor pivoted dumping device mounted on the frame in alinement with thebucketguide track, a spring-held cross-head slidably mounted on theframe and provided with a hook adapted to engage the upper edge of thebucket as the latter is drawn upwardly to engagement with the dumpingdevice, whereby the springs of the cross-head are placed under tension,and a leaf spring mounted on the frame, arranged to engage the bucketwhen landed ou the dumping device, and arranged to coperate with thegravity of the bucket to tip the dumping device downward, and weightsapplied tothe dumping device and normally holding it in position to forma continuation of the bucketguide track.

In testimony whereof I affix my signature in presence of two witnesses.

THEODORE N. JONES.

Witnesses:

GHENT DAVIS, DORA C. SHICK.

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